
Random Variables Test Review
Authored by Carlisa Johnson
Mathematics
10th - 12th Grade
CCSS covered
Used 1+ times

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25 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Is this binomial experiment? Shuffle a deck of 52 cards. Turn over the top card. Do not replace the card. Repeat the process 5 times. Let X = the card you observe.
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Is this binomial experiment? Shuffle a deck of 52 cards. Turn over the top card. Put the card back in the deck, shuffle again. Repeat the process 50 times. Let X = the number of aces you observe.
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Which one of these variables is a binomial random variable?
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
An algebra 2 test has 6 multiple choice questions with four choices with one correct answer each. If we just randomly guess on each of the 6 questions, what is the probability that you get exactly 3 questions correct? (You need to figure out the p value first. It is not given to you.)
Tags
CCSS.HSS.CP.B.9
CCSS.HSS.CP.A.2
CCSS.HSS.CP.B.8
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Bob is taking a 100 question test. They have a 90 % probability of getting any one question correct. WHICH IS THE CORRECT FORMULA TO FIND OUT THE PROBABILITY that they will answer EXACTLY 70 questions correctly?
Tags
CCSS.HSS.CP.B.9
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A test has 8 multiple choice questions with four choices with one correct answer each. If we just randomly guess on each of the 8 questions, what is the probability that you get at least 3 questions correct?
0.886
0.332
0.678
0.208
Tags
CCSS.HSF-LE.A.1C
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A set of 20 cards consists of 10 purple cards and 10 green cards. If you turn cards over one at a time after shuffling them and wait until you get your first purple, what distribution is it
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